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hypixel-skyblock-mcp

Get SkyBlock Inventory Sections

skyblock_inventory
Read-onlyIdempotent

Fetch and decode Hypixel SkyBlock inventory-like NBT sections for one profile, including wardrobe, armor, equipment, ender chest, backpacks, vault, and bags; use filters to keep output focused.

Instructions

Fetch and decode inventory-like NBT sections for one SkyBlock profile, including wardrobe, armor, equipment, ender chest, backpacks, vault, and bags. Use filters to keep output focused.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
uuidNoMinecraft UUID, dashed or undashed.
usernameNoMinecraft username. Use this when the user gives a name.
profileIdNoSpecific SkyBlock profile UUID.
memberUuidNoCoop member UUID to inspect. Defaults to requested player.
maxSectionsNo
profileNameNoCute profile name, for example Apple, Lemon, or Coconut.
maxLoreLinesNo
sectionPathsNoFilter decoded inventory sections by case-insensitive path substring, for example wardrobe_contents or backpack_contents.
sectionTypesNoFilter decoded inventory sections by type. Common values: inventory, wardrobe, armor, equipment, ender_chest, backpack, accessory_bag, potion_bag, fishing_bag, quiver, personal_vault, sack, loadout, container, unknown. Omit or include all for all inventory-like sections.
selectedOnlyNoPrefer the selected profile when multiple profiles exist.
includeRawNbtNoInclude simplified raw NBT for decoded sections. Very large output.
memberUsernameNoCoop member username to inspect. Defaults to requested player.
includeRawMemberNoInclude the raw selected member object. Very large output.
includeAllNbtDataNoSearch every base64 NBT payload on the member, not only inventory-like paths.
includeItemDetailsNoInclude extra compact ExtraAttributes fields on decoded items.
maxItemsPerSectionNo

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed11 schema fields changedv1.1.0
    • addedInput schema / properties / memberUsername / maxLength
      Added value: +64
    • removedInput schema / properties / memberUuid / minLength
      Removed value: -1
    • addedInput schema / properties / memberUuid / pattern
      Added value: +"^(?:[0-9a-f]{32}|[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12})$"
    • removedInput schema / properties / profileId / minLength
      Removed value: -1
    • addedInput schema / properties / profileId / pattern
      Added value: +"^(?:[0-9a-f]{32}|[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12})$"
    • addedInput schema / properties / profileName / maxLength
      Added value: +64
    • addedInput schema / properties / sectionPaths / items / maxLength
      Added value: +256
    • addedInput schema / properties / sectionTypes / items / maxLength
      Added value: +256
    • addedInput schema / properties / username / maxLength
      Added value: +64
    • removedInput schema / properties / uuid / minLength
      Removed value: -1
    • addedInput schema / properties / uuid / pattern
      Added value: +"^(?:[0-9a-f]{32}|[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12})$"
  2. First observedv1.0.1

TDQS

B3.4/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnlyHint, idempotentHint, openWorldHint and destructiveHint=false, so the safety profile is covered. The description adds that output is decoded NBT and that filtering exists, but says nothing about how heavy the default payload is or what triggers the "very large output" flags the schema hints at. Adequate but thin beyond the annotations.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Two sentences, front-loaded with the verb and resource, zero filler. The section enumeration is long but earns its place by telling the agent what data is available without opening the schema.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

With 16 parameters, no required fields, and no output schema, the description is quite short. It never sketches the shape of the returned sections, item structure, or how the large-output opt-ins change the response, which is a real gap for a tool whose whole job is returning a complex payload.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 81%, so the schema already explains nearly every parameter (uuid, username, sectionPaths, sectionTypes, includeRawNbt, etc.). The description only alludes to "filters" generically and adds no syntax, format, or interaction detail beyond the schema, so the baseline 3 applies.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific verb (fetch and decode) and resource (inventory-like NBT sections for one SkyBlock profile), and enumerates what those sections cover: wardrobe, armor, equipment, ender chest, backpacks, vault, bags. It is clearly distinguishable from decode_skyblock_nbt at a conceptual level, though it never names that sibling or skyblock_storage to draw the boundary explicitly.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

"Use filters to keep output focused" is a mild operational tip but not real when-to-use guidance. Nothing tells the agent when this tool is preferable to skyblock_storage, decode_skyblock_nbt, or skyblock_profile, nor are any prerequisites (e.g. needing a profileId first) stated.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.